I'm having a problem with this build not responding. I'll leave VS for a while (perhaps to send an email, or do some research), and when I come back to it, R# doesn't respond at all for a few minutes. CTRLSHIFTR just makes the document flash, and although errors are underlined, there's no fixes coming up. Also, clicking on the Unit Test indicator in the left hand margin doesn't bring up a context menu.
I'm running this on a dedicated dual core AMD Athlon 64 X2 4400, with 2GB RAM, and a 10000rpm harddrive, and I've not had problems with performance with anything else.